Datasheet

V
ILIM
− Current Limit Threshold Voltage − mV
T
J
− Junction Temperature − °C
−50 −25 0 25 50 75 100 125
0
200
400
500
600
300
100
V
VDD
= 12 V
R
COMP
= 12 kΩ
4.5 6.0 7.5 9.0 10.5 12.0 13.5 15.0
160.0
160.2
159.8
159.6
159.4
161.0
161.2
160.8
160.6
160.4
V
ILIM
− Current Limit Threshold Voltage − mV
V
VDD
− Input Voltage − V
T
J
= 25°C
R
COMP
= 4 kΩ
−50 −25 0 25 50 75 100 125
0
50
100
150
200
250
V
ILIM
− Current Limit Threshold Voltage − mV
T
J
− Junction Temperature − °C
V
VDD
= 12 V
R
COMP
= 4 kΩ
4.5 6.0 7.5 9.0 10.5 12.0 13.5 15.0
4.655
4.665
4.670
4.660
4.695
4.690
4.685
4.675
4.705
4.700
4.680
t
SS
− Soft−Start Time − ms
V
VDD
− Input Voltage − V
T
J
= 25°C
TPS40190
www.ti.com SLUS658C –JULY 2005–REVISED JULY 2012
Typical Characteristics (continued)
SOFT START TIMING CURRENT LIMIT THRESHOLD
vs vs
INPUT VOLTAGE TEMPERATURE
Figure 24. Figure 25.
CURRENT LIMIT THRESHOLD CURRENT LIMIT THRESHOLD
vs vs
INPUT VOLTAGE TEMPERATURE
Figure 26. Figure 27.
Copyright © 2005–2012, Texas Instruments Incorporated 17